目前在世界范围内胎儿的死亡率与发病率仍然很高,为使其下降而检侧胎儿胎盘功能是当前产科最重要的问题之一。与其它内分泌组织不同,在体内人类胎盘由特异的前体能合成胎盘雌激素。但胎盘并非完整的内分泌系统,不能自行制造雌激素。它制造雌激素的效能取决于胎儿—胎盘单元(Ftoplacental unit)的完整性,后者能提高各种类固醇激素如雌激素与黄体酮等的妊娠期血中水平。近几年来尚有另一种激素,业经鉴定与定量分析后。命名为人类胎盘催乳激素(简称HPL)。HPL系一种 Currently the world’s fetal mortality and morbidity is still high, in order to make it down and check the fetus placental function is currently one of the most important obstetric problems. Unlike other endocrine tissues, human placenta can synthesize placental estrogen from specific precursors in vivo. But the placenta is not a complete endocrine system, can not create their own estrogen. The effectiveness of its manufacture of estrogen depends on the integrity of the Fetalcentral unit, which increases the gestational blood levels of various steroid hormones such as estrogen and progesterone. In recent years, there is another hormone, after the identification and quantitative analysis. Named human placental lactogen (HPL). HPL is a kind